Timelapse shows historic Roman baths being drained and cleaned

The Great Bath that gave the city of Bath its name has been given a wash and brush up ahead of the peak visiting season.

The open air Roman structure has to be emptied and cleaned regularly to clear algae and other debris.

Conservators use a lot of the same engineering installed by the Romans 2,000 years ago to drain the water and keep the tourist attraction as clean as possible.

Video journalist: Antony Ward